Important Microsoft has completed the investigation into a public report of this vulnerability. We have issued CVE-2020-0674 - Scripting Engine Memory Corruption Vulnerability to address this vulnerability. For more information about this issue, including download links for an available security update, please review CVE-2020-0674 . A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website, for example, by sending an email.

No EPSS score available for this CVE.

Clément Lecigne of Google’s Threat Analysis Group
Yi Huang(@C0rk1_H) & Kang Yang(@dnpushme) of Qihoo 360 ATA